Polyethylene Glycol , Propylene Glycol

Polyethylene Glycol (PEG) and Propylene Glycol (PG) are two pharmaceutically active ingredients commonly used in medications, particularly in the formulation of oral and topical drug delivery systems. These compounds are known for their solvent properties and ability to enhance the stability, solubility, and absorption of other active ingredients in a pharmaceutical preparation.
PEG is a type of synthetic polymer that forms the basis of many excipients in oral and topical medications. Due to its hydrophilic nature, PEG can improve the solubility of poorly soluble substances, making them more easily absorbed by the body. It is also often used as a viscosity enhancer in topical products like creams and ointments to increase their effectiveness.
On the other hand, PG is an organic compound with a wide range of industrial applications, including pharmaceuticals. As a solvent, PG can help dissolve various active ingredients, making it an ideal choice for formulating liquids, sprays, and ophthalmic solutions. Furthermore, its low toxicity and relative safety make it a popular choice in numerous personal care and medical products.
While PEG and PG can both be found in a variety of pharmaceutical preparations, they do not serve as primary therapeutic agents in any medication. Instead, they play supporting roles in enhancing the drug delivery process and ensuring the stability, solubility, and absorption of active ingredients in the formulation.